Thanks boys. Looks like I have a flex fuel pcm. Maybe I should add the sensor and see what happens.

 

Where is the fuel composition sensor mounted in a stock application?

 

All pcms have the alcohol content vs stoich table, but in the non-flexfuel vehicles its just a single value. If your truck is not a flex fuel truck then you do not have the right pcm.

 

Looks to be the trans crossmember

 

I dont have the stock pcm in my truck. Also I don't have the single value stoich table. It is an actual table with a single row of values based on alcohol content like you said before. Seems like I can make it work

 

I am noticing a problem here... For those who don't have stock fuel lines, that sensor isn't going to work. Is yours still stock? The sensor would need a new housing machined to accept AN fittings. Can be done, just further complication.

 

You don't think a russell fuel fitting would fit those nipples? The outlet looks smaller than the inlet but I know russell makes a few different sizes to fit fuel rails. I am running an AN fuel system so it would work great if those fittings would work

 

You could use an adapter. But I'm not sure how much they've got it necked down in there. Most people are paranoid about fuel line size and run dual -10s or some **** lol. It would probably be fine with adapters. That method doesn't cater to all parties though

 

Yea I know what your saying. I'm still NA and very conservative so those adapters would work without worry. I think I have enough injector but not quite sure. Sounds like a fun experiment